.hide-partial { max-height: none; } .show-more { display: none; }

ARM Cortex M4 Core Embedded Processors & Controllers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Embedded Processors & Controllers

List Images

Results: 2,800

Applied Filters:

Core = ARM Cortex M4

Manufacturer

Product Type

Mounting Style

Package/Case

Data Bus Width

Maximum Clock Frequency

Program Memory Size

L1 Cache Data Memory

Data RAM Size

ADC Resolution

Number of I/Os

Minimum Operating Temperature

Maximum Operating Temperature

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

STM32F429AIH6
STMicroelectronics
1: $25.15
14In Stock

Mfr. Part No.
STM32F429AIH6

Mouser Part No
511-STM32F429AIH6

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

Learn More

Datasheet

14In Stock

$25.15

$19.11

$18.32

$16.14

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

BGA-169

ARM Cortex M4

32 bit

180 MHz

2 MB

260 kB

12 bit

130 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash 1

STM32F429BGT6
STMicroelectronics
1: $24.18
98In Stock
360Expected 2/2/2027

Mfr. Part No.
STM32F429BGT6

Mouser Part No
511-STM32F429BGT6

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash 1

Learn More

Datasheet

98In Stock

360Expected 2/2/2027

$24.18

$18.69

$17.73

$15.93

$14.18

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-208

ARM Cortex M4

32 bit

180 MHz

1 MB

260 kB

12 bit

168 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz

STM32F429IIH6
STMicroelectronics
1: $26.68
13In Stock
2,016Expected 8/3/2027

Mfr. Part No.
STM32F429IIH6

Mouser Part No
511-STM32F429IIH6

STMicroelectronics

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz

Learn More

Datasheet

13In Stock

2,016Expected 8/3/2027

$26.68

$21.20

$18.25

$17.16

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

BGA-176

ARM Cortex M4

32 bit

180 MHz

2 MB

260 kB

12 bit

140 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash 1

STM32F429VGT6TR
STMicroelectronics
1: $22.41
17In Stock
1,000Expected 15/3/2027

Mfr. Part No.
STM32F429VGT6TR

Mouser Part No
511-STM32F429VGT6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 1 Mbyte of Flash 1

Learn More

Datasheet

17In Stock

1,000Expected 15/3/2027

Cut Tape

$22.41

$17.67

$15.68

$14.39

View

Reel

$13.08

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

180 MHz

1 MB

260 kB

12 bit

82 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 180MHz

STM32F429ZGT6
STMicroelectronics
1: $22.74
16In Stock
1,156Expected 23/12/2026

Mfr. Part No.
STM32F429ZGT6

Mouser Part No
511-STM32F429ZGT6

STMicroelectronics

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 180MHz

Learn More

Datasheet

16In Stock

1,156Expected 23/12/2026

$22.74

$17.52

$16.56

$14.82

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-144

ARM Cortex M4

32 bit

180 MHz

1 MB

260 kB

12 bit

114 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

STM32F429ZIY6TR
STMicroelectronics
1: $19.64
18In Stock
10,000On Order

Mfr. Part No.
STM32F429ZIY6TR

Mouser Part No
511-STM32F429ZIY6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

Learn More

Datasheet

18In Stock

10,000On Order

Cut Tape

$19.64

$15.34

$14.31

$12.85

View

Reel

$10.50

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ARM Microcontrollers - MCU

SMD/SMT

WLCSP-144

ARM Cortex M4

32 bit

180 MHz

2 MB

260 kB

12 bit

114 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

STM32F437IIT7
STMicroelectronics
1: $25.80
8In Stock
400Expected 10/2/2027

Mfr. Part No.
STM32F437IIT7

Mouser Part No
511-STM32F437IIT7

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

Learn More

Datasheet

8In Stock

400Expected 10/2/2027

$25.80

$20.85

$19.99

$17.61

$15.22

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

ARM Cortex M4

32 bit

12 bit

Tray

ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU

STM32F437VGT6
STMicroelectronics
1: $20.60
17In Stock
1,620On Order

Mfr. Part No.
STM32F437VGT6

Mouser Part No
511-STM32F437VGT6

STMicroelectronics

ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU

Learn More

Datasheet

17In Stock

1,620On Order

$20.60

$15.44

$14.57

$13.91

$12.97

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

180 MHz

1 MB

256 kB

3 x 12 bit

82 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz

STM32F439IIT6
STMicroelectronics
1: $25.91
14In Stock
800On Order

Mfr. Part No.
STM32F439IIT6

Mouser Part No
511-STM32F439IIT6

STMicroelectronics

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz

Learn More

Datasheet

14In Stock

800On Order

$25.91

$18.82

$17.37

$16.85

$16.61

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-176

ARM Cortex M4

32 bit

180 MHz

2 MB

256 kB

3 x 12 bit

140 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 180MHz

STM32F439ZGT6
STMicroelectronics
1: $20.78
1In Stock
360Expected 30/12/2026

Mfr. Part No.
STM32F439ZGT6

Mouser Part No
511-STM32F439ZGT6

STMicroelectronics

ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 180MHz

Learn More

Datasheet

1In Stock

360Expected 30/12/2026

$20.78

$15.34

$14.39

$13.37

$13.19

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-144

ARM Cortex M4

32 bit

180 MHz

1 MB

256 kB

3 x 12 bit

114 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Fl

STM32F446MEY6TR
STMicroelectronics
1: $11.64
5In Stock
5,000Expected 14/12/2026

Mfr. Part No.
STM32F446MEY6TR

Mouser Part No
511-STM32F446MEY6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Fl

Learn More

Datasheet

5In Stock

5,000Expected 14/12/2026

Cut Tape

$11.64

$8.99

$7.98

$7.62

View

Reel

$6.45

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ARM Microcontrollers - MCU

SMD/SMT

UFBGA-81

ARM Cortex M4

32 bit

180 MHz

512 kB

128 kB

3 x 12 bit

63 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl

STM32F446RCT7
STMicroelectronics
1: $13.12
16In Stock
960Expected 15/9/2026

Mfr. Part No.
STM32F446RCT7

Mouser Part No
511-STM32F446RCT7

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl

Learn More

Datasheet

16In Stock

960Expected 15/9/2026

$13.12

$9.85

$9.38

$8.15

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

180 MHz

256 kB

128 kB

3 x 12 bit

50 I/O

- 40 C

+ 105 C

Tray

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl

STM32F446RCT7TR
STMicroelectronics
1: $13.12
31In Stock
1,000On Order

Mfr. Part No.
STM32F446RCT7TR

Mouser Part No
511-STM32F446RCT7TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl

Learn More

Datasheet

31In Stock

1,000On Order

Cut Tape

$13.12

$9.85

$9.38

$8.06

View

Reel

$7.19

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

180 MHz

256 kB

128 kB

3 x 12 bit

50 I/O

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Fl

STM32F446RET6TR
STMicroelectronics
1: $14.06
14In Stock
4,000On Order

Mfr. Part No.
STM32F446RET6TR

Mouser Part No
511-STM32F446RET6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Fl

Learn More

Datasheet

14In Stock

4,000On Order

Cut Tape

$14.06

$10.87

$10.36

$9.00

View

Reel

$7.93

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

180 MHz

512 kB

128 kB

3 x 12 bit

50 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl

STM32F446VCT6
STMicroelectronics
1: $12.39
263In Stock

Mfr. Part No.
STM32F446VCT6

Mouser Part No
511-STM32F446VCT6

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl

Learn More

Datasheet

263In Stock

$12.39

$10.32

$9.83

$8.54

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-100

ARM Cortex M4

32 bit

180 MHz

256 kB

128 kB

3 x 12 bit

81 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Fl

STM32F446ZEJ6TR
STMicroelectronics
1: $16.27
23In Stock
1,500Expected 26/10/2026

Mfr. Part No.
STM32F446ZEJ6TR

Mouser Part No
511-STM32F446ZEJ6TR

STMicroelectronics

ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Fl

Learn More

Datasheet

23In Stock

1,500Expected 26/10/2026

Cut Tape

$16.27

$13.38

$12.76

$11.08

View

Reel

$9.60

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

ARM Microcontrollers - MCU

UFBGA-144

ARM Cortex M4

32 bit

12 bit

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

STM32F469NIH6
STMicroelectronics
1: $25.06
5In Stock
960Expected 9/10/2026

Mfr. Part No.
STM32F469NIH6

Mouser Part No
511-STM32F469NIH6

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

Learn More

Datasheet

5In Stock

960Expected 9/10/2026

$25.06

$20.13

$19.20

$17.34

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

BGA-216

ARM Cortex M4

32 bit

180 MHz

2 MB

384 kB

3 x 12 bit

161 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

STM32F469NIH7
STMicroelectronics
1: $27.57
169In Stock

Mfr. Part No.
STM32F469NIH7

Mouser Part No
511-STM32F469NIH7

STMicroelectronics

ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash

Learn More

Datasheet

169In Stock

$27.57

$22.20

$21.46

$19.39

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

TFBGA-216

ARM Cortex M4

32 bit

12 bit

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 64 Kbytes of Flash Math Accel, Medium Analo

STM32G431C8T6
STMicroelectronics
1: $9.17
49In Stock
10,500On Order

Mfr. Part No.
STM32G431C8T6

Mouser Part No
511-STM32G431C8T6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 64 Kbytes of Flash Math Accel, Medium Analo

Learn More

Datasheet

49In Stock

10,500On Order

$9.17

$6.73

$6.27

$5.29

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

170 MHz

64 kB

32 kB

2 x 12 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz with 128 Kbytes of Flash memory

STM32G431CBT6
STMicroelectronics
1: $9.59
45In Stock
7,500On Order

Mfr. Part No.
STM32G431CBT6

Mouser Part No
511-STM32G431CBT6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz with 128 Kbytes of Flash memory

Learn More

Datasheet

45In Stock

7,500On Order

$9.59

$7.10

$6.54

$5.85

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

170 MHz

128 kB

32 kB

2 x 12 bit

38 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, Medium Anal

STM32G431RBI6
STMicroelectronics
1: $10.85
5In Stock
2,940On Order

Mfr. Part No.
STM32G431RBI6

Mouser Part No
511-STM32G431RBI6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, Medium Anal

Learn More

Datasheet

5In Stock

2,940On Order

$10.85

$7.97

$7.43

$6.53

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFBGA-64

ARM Cortex M4

32 bit

170 MHz

128 kB

32 kB

12 bit

52 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, Medium Anal

STM32G431RBT6
STMicroelectronics
1: $10.44
42In Stock
2,880On Order

Mfr. Part No.
STM32G431RBT6

Mouser Part No
511-STM32G431RBT6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, Medium Anal

Learn More

Datasheet

42In Stock

2,880On Order

$10.44

$7.97

$7.04

$6.53

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-64

ARM Cortex M4

32 bit

170 MHz

128 kB

32 kB

2 x 12 bit

52 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, Medium Anal

STM32G441KBU6
STMicroelectronics
1: $8.88
47In Stock
11,760On Order

Mfr. Part No.
STM32G441KBU6

Mouser Part No
511-STM32G441KBU6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 128 Kbytes of Flash Math Accel, Medium Anal

Learn More

Datasheet

47In Stock

11,760On Order

$8.88

$6.79

$6.26

$5.20

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-32

ARM Cortex M4

32 bit

150 MHz

128 kB

32 kB

12 bit

26 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l

STM32G473CCT3
STMicroelectronics
1: $11.42
206In Stock
1,500On Order

Mfr. Part No.
STM32G473CCT3

Mouser Part No
511-STM32G473CCT3

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l

Learn More

Datasheet

206In Stock

1,500On Order

$11.42

$8.83

$7.78

$7.47

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

LQFP-48

ARM Cortex M4

32 bit

170 MHz

256 kB

128 kB

5 x 12 bit

42 I/O

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l

STM32G473CCU6
STMicroelectronics
1: $9.51
5In Stock
1,560On Order

Mfr. Part No.
STM32G473CCU6

Mouser Part No
511-STM32G473CCU6

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l

Learn More

Datasheet

5In Stock

1,560On Order

$9.51

$7.58

$7.28

$6.47

View

Min.: 1
Mult.: 1

ARM Microcontrollers - MCU

SMD/SMT

UFQFPN-48

ARM Cortex M4

32 bit

170 MHz

256 kB

128 kB

5 x 12 bit

42 I/O

- 40 C

+ 85 C

Tray

ARM Cortex M4 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

AQFN-73
BGA-100
BGA-112
BGA-120
BGA-121
BGA-124
BGA-125
BGA-144
BGA-146
BGA-152
BGA-168
BGA-169
BGA-176
BGA-192
BGA-196
BGA-216
BGA-224
BGA-256
BGA-64
CQFP-176

32.768 kHz
1 MHz
5 MHz
20 MHz
25 MHz
32 MHz
39 MHz
40 MHz
48 MHz
50 MHz
64 MHz
72 MHz
80 MHz
84 MHz
96 MHz
100 MHz
112 MHz
120 MHz
144 MHz
150 MHz

0 B
6 kB
8 kB, 1 MB
16 kB
32 kB
32 kB, 1 MB
64 kB
96 kB
128 kB
192 kB
220 kB, 512 kB
224 kB
256 kB
320 kB
348 kB
352 kB
384 kB
416 kB
512 kB
640 kB

2 kB
4 kB
8 kB
12 kB
16 kB
18 KB
20 kB
22 kB
24 KB
24 kB
32 kB
40 kB
48 kB
64 kB
64 kbit
65 kB
80 kB
88 kB
96 kB
112 kB

2 x 12 bit
2 x 16 bit
2 x 6 bit/8 bit/10 bit/12 bit
3 x 12 bit
4 x 12 bit
4 x 16 bit
4 x 6 bit/8 bit/10 bit/12 bit
5 x 12 bit
6 bit/8 bit/10 bit/12 bit
8 bit
8 bit, 10 bit
8 bit, 10 bit, 12 bit
10 bit
10 bit, 12 bit
10 bit, 13 bit
12 bit
12 bit, 14 bit
12 bit, 16 bit
12 bit, 3 x 16 bit
14 bit

9 I/O
10 I/O
14 I/O
15 I/O
16 I/O
18 I/O
20 I/O
21 I/O
22 I/O
23 I/O
24 I/O
25 I/O
26 I/O
27 I/O
28 I/O
29 I/O
30 I/O
31 I/O
32 I/O
33 I/O